Occupational allergy to cinnamal in a baker.

Contact dermatitis of hands is frequent among bakers and, as in other subjects doing ‘wet work’ and/or exposed to powders, is classically irritant in origin (1). This often results in allergic causes being overlooked and, consequently, not investigated adequately, despite the multiple potential allergens in the workplace. We present a case of occupational hand eczema caused by a well-known and common hapten, typically present in bakeries, but infrequently reported (and probably underestimated) as a possible cause of contact allergy in bakers.